Gas-stove.



J. STEINMASSL.

GAS STOVE.

APPLICATION FILED MAR.18,1911.

1,012,472, Patented Dec. 19, 1911.

2 SHBBTS BHEET 1.

. J. STEINMASSL GAS STOVE.

APPLICATION TILED MAR.18.1911.

Patnted Dec. 19, 1911.

2 SHEETS-SHEET 21 wwkmmwb v.51 Q 5 JOHN STEINMASSL, or conoNA;

NEW YORK, ASSIGNOR, fllfiVISELF, AND ALBERT WEINKAUF; or JAMA CA, NEW YORK.

GAs-s'ro VE.

Specification of Letters Patent.

Application filed March 18, 1911. Serial No. 615,272. x

Patented Dec. 19, 1911.

To all whom it may concern:

Be it known that I, JOHN S'rnlnnassn, a subject of the Emperor of Austria-Hungary, and a resident of Corona, in the county of Queens and State of New York, have invented certain new and useful Improvements in Gas-Stoves, of which the following is a specification.

My improvements relate to gas stoves or ranges in which the combustion of gas mixed with air is effected underneath suitable open grates or supports for cooking utensils, &c.; and the invention consists in the Specific construction and arrangement.

ofyparts hereinafter described and claimed.

In the accompanying drawings, Figure 1, is a plan of a two-burner gas stove embodying the essential features of my invention; Fig. 2, is a. central longitudinal vertical section; Fig. 3, is a sectional elevation showing the internal structure of the secondary heater h; Fig. 4, is a plan of the under side of the structure shown in Fig. 1; Fig. 5, is a transverse vertical section taken upon plane of line 5-5 Fig. 4.

The top a, of the range or stove is formed with the usual grate openings 9, one for each burner b, said grate openings having the radial grate bars g, or being othe .wise formed to support cooking utensils over the openings 9. Each burner Z), is of any usual or desired construction, being preferably circular and formed with the gas outlets b. It is connected with the gas main supply pipe p, by means of the usual injector pipe '5, formed with openings 6, z", for the admission of air, and with the gas jet 1'', the construction and operation of the parts thus far named being essentially the same as heretofore.

In'Figs. 1, 2, 4 and 5 of the drawings 1 show a duplex arrangement of water heaters, burners, &c., in which a primary heater h, adapted to connect with a hot water reservoir through the medium of inlet and return ducts it, It, is formed with a central partition If, to obviate short circuiting of water therein and insure a proper circulation in and through the secondary heater It". The

primary heater h, and the secondary heater M, are connected by coupling pipes c, the opposite extremities of which are formed with right and left hand screw threads re spectively to engage with correspondingly tapped coupling heads h, on the water heaters lb, h", as indicated inFigs. 2 and 4. Each of said water heaters it, It", is interposed between a gas burner 1), and a grate opening 9, and grate bars 9.

The heaters are preferably circular in' shape, and larger in diameter than the burners I); and they have a central compartment 1, connected by radial tubes 2, 2, with the annular chamber 3, into which the inlet and discharge ducts open.

The primary heater h, ditl'ers from the secondary heater it, only in that in addition to the central portion h it is formed with the inlet and discharge ducts It, lz.,-the connection between the two heaters being effected through the medium of the coupling heads h, and coupling pipes c, as will be readily ululerstoml by reference to Fig. 2 n

It will be seen that the radial tubes 2, 2, overlie the burner I), in each case, of the passage of the products of combustion between them to the grate opening 9.

Each water heater 72-, It being exposed to direct contact with the flame as the latter passes to the grate, it is obvious that the water in the heater will absorb a large percentage of heat which will cause it to circulate through the whole system of water connections, thereby utilizing heat that would otherwise be lost in the atmosphere. The heat thus collected by the water circulation may be stored and used as wanted for domestic or other purposes by well known means.

What I claim as my invention and desire to secure by Letters Patent, is-- 1. ln a gas stove of the character desighated, the combination of a primary water heater h, and a siacoudary water heater It", both adapted to be interposed between the gas burners and grate-bars,andcach formed with a central chamber 1. an annular chamher 3, and radial tubes 2, connecting said central and annular chambers, and pipes connecting the annular chambers 3, 3, of said prin'lary and secondary heaters with each other, the primary heater being also formed with a dividing partition h", in its central chan'ibcr 1, and being also formed with inlet and discharge ducts it, h, adapted to connect the said primary and secondary water heaters with a hot water reservoir, as and for the purpose described.

2. In a gas stove of the character designated, the combination of a primary water and admit said coupling heads 72, it the .primary heater h, bein also formed with a dividing partition h",.1n its central chamber 1, and being also formed with inlet and discharge ducts h, h, adapted to connect the said primary and secondary water heaters with a hot Water reservoir as and for the'purpose 20' described. g

' JOHN STEINMASSL Witnesses:

GEO. WM. MIATT, LILLIA MIATT. 

